期刊名称:Journal of Nutritional Science and Vitaminology
印刷版ISSN:0301-4800
电子版ISSN:1881-7742
出版年度:1982
卷号:28
期号:4
页码:335-342
DOI:10.3177/jnsv.28.335
出版社:Center for Academic Publications Japan
摘要:Vitamin B2-aldehyde-forming enzyme isolated from Schizo-phyllum commune with 1, 400-fold purity was found to require NADPH under aerobic but not anaerobic conditions. Both NADPH- and DCIP-requiring enzyme activities which could not be separated by our enzyme purification system were found in the same single protein band on polyacrylamide disc gel electrophoresis. The cation, Cu2+, markedly stimulated the NADPH-dependent enzyme reaction under the aerobic conditions. The reagents, EDTA, pyrazole, N ethylmaleimide, PCMB, and arsenite, inhibited the formation of vitamin B2-aldehyde to various extents, whereas azide did not.
关键词:vitamin B2-aldehyde-forming enzyme;NADPH-depen-dence;DCIP-dependence;activation by Cu2+;requirement of oxygen